Stock Drive Products & Sterling Instrument - SDP/SI - SDP Achieves AS9100C Certification

Certification Strengthens SDP's Competitive Position (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - TIming Pulleys for synchronous toothed belts.

Fasteners include set screws or our patented Fairloc® system. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Space Saving Posi-Drive Belts & Sprockets

No flanges are required, which saves space, and also prevents the trapping of air between the belt and the flanges, creating a much quieter operation. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Flexible Couplings With Splined Sleeve From SDP

They are unique in that the hubs wrap around the sleeve, which allows for maximum flexibility while the meshing splines maintain a secure engagement. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Helical Gears From SI feature AGMA 10 Quality

They are produced in a range of sizes from 0.631" to 2.987" in diameter and from 20 through 100 teeth. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - AGMA Q10 Quality Precision Internal Gears From SI

The metric gears in Modules 0.5, 0.8, & 1 are ISO Class 7 and are stocked in 5, 8 & 10 mm face widths (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - 2 mm Pitch GT®2 Timing Belt Pulleys From SDP

GT®2 Timing Belt Pulleys From SDP Feature Integral Hub Locking System (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Anti-backlash gears from SI feature Fairloc® hubs

The Fairloc® system consists of two slots that are machined into the stainless steel hub, one orientated radially the other angularly. to create a transverse wedge which remains attached to the solid portion of the hub on one side. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Multi-Plate, Miniature Slip Clutches from SDP

The clutch is constructed so that when the slip torque is reached, the input plates will slip but the output plates will not, preventing the exceeded torque from being transmitted to the output shaft. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Stainless steel ACME lead screws from SDP

The main advantage of ACME lead screws over other styles is that the trapezoidal thread profile is much easier to manufacture, resulting in substantial cost savings. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - New Series Of Double Universal Joints

New Series Of Double Universal Joints From Sterling Instrument (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Designatronics Connects with Students

At Designatronics the Goal is to Inspire and Educate Students about Today's Manufacturing and Engineering Opportunities (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Available Now! Metric Timing Belts from SDP

SDP provides standard and custom timing belts in whatever size is required. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Available Now! Inch Pitch Timing Belts from SDP

SDP is one of the largest suppliers of timing belt sleeving anywhere. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - PowerGrip® TruMotion® Timing Belts from SDP

PowerGrip® TruMotion® Timing Belts from SDP feature a polymer-free nylon tooth facing for clean running performance. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Shaft Collars From SDP with Fairloc® hubs

Shaft Collars From Stock Drive Products are designed to fit shafts that are .12" to 3/4" (3 to 20 mm) in diameter. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Miniature Helical Couplings Feature Zero Backlash

Made of 7075-T651 aluminum, these couplings range in O.D. sizes from 19.1 mm to 31.8 mm and in lengths from 28 mm to 58 mm and have a maximum speed of 5000 rpm. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Modules 0.5, 0.8,1 and 1.5 Gear Racks

These standard components are made from ANSI 1045 steel with a tooth surface induction hardness of HRC 27-32. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Unique Synchromesh Cable Drives From SDP

Synchromesh cable can be used with lower tension when compared with ropes which reduces power consumption. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Polyurethane Timing Belts with Fiberglass Cords

These belts have fiberglass tensile cords arranged in S and Z configurations that provide even greater breaking strength than their steel counterparts, resulting in a high load carrying capacity. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - HTD®3 Timing belt pulleys with Fairloc Hub

Timing belt pulleys from SDP feature the aluminum HTD® 3mm profile and the Fairloc® integral hub locking system. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Aluminum-Acetal Gears feature AGMA Q10 Quality

The best of both worlds: the noise reduction benefits of acetal rim gear teeth along with the strength of the 2024 aluminum core assembled onto a stainless steel hub. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Shaft Reducers / Extenders with the Fairloc® Hub

The Fairloc® integral hub fastener consists of two slots that are machined into the hub, one radially the other angularly, to create a transverse wedge which remains attached to the solid portion of the hub on one side. High precision shaft reducers / extenders eliminate the need for special shafting. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Non-Corrosive, All Metal Right Angle Ratio Drives

These small drives measure just 1-1/16" wide x 1-17/32" deep x 1½" high. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Slit-Type Plastic couplings from SDP

Plastic couplings from SDP feature low cost, UV resistance, voltage and RF isolation. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Perfect gears for your application every time.

Our highly experienced engineers will work with you one on one not only to help you select the right standard gear for your application, but also to help you synthesize a custom design with all of the proper specifications, if required. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Fairloc® Hub Spur Gears

Patented Fairloc® Integral Fastening System from Sterling Instrument on AGMA 10, 303 stainless steel gears. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - ABEC 3 bearings available in both plain & flanged

These bearings support both axial and radial loads with minimal play and are suitable for commercial applications that require low friction movement. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Mini-lash gears eliminate backlash in gear trains.

A built-in torsion spring, mounted around the hub, forces the two gear halves to turn in opposing directions relative to one another until the tooth space between the mini-lash gear and a mating gear is entirely filled. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Mini-pitch timing belts for use in limited space

The teeth of the Neoprene belt are faced with extra durable wear resistant nylon fabric that eliminates the need for lubrication. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - HTD® 5 mm Series of Molded Timing Belt Pulleys

HTD® 5 mm Pitch Series of Molded Timing Belt Pulleys From SDP Feature The Fairloc® Hub Fastening System (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Miniature Pillow Block Ball Bearings from SDP

With an aluminum housing, stainless steel bearing and double shielding, they have excellent corrosion resistance, making them suitable for medical, scientific and pharmaceutical applications. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Module 0.5, Precision Spur Gears with Hub from SI

Precision spur gears are stocked in 3 and 5 mm face widths and have bore diameters of 10 mm. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Fairloc® Bellows couplings from SDP

These 14 couplings are designed to fit shafts ranging in diameter from .1200" to .3750" (3 mm to 12 mm). (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - SUPER-PLAST® U-Joints: the best of both worlds

The economy of plastic, and the fastening characteristics of metal-to-metal contact. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Miniature Components for Big Ideas!

SDP & SI provide a comprehensive selection of fine pitch inch and metric spur gears, mini pitch belts and pulleys as well as miniature shafts & shafting accessories. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Precision Gear & Dial Hubs featuring Fairloc® Hubs

Fairloc® permits frequent phase adjustment, timing and position adjustment while adding positive metal-to-metal fastening strength along both hub sections. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - The Ultimate Fastening Device: Shaftloc® from SDP

Shaftloc® from SDP is the superior way to fasten rotating parts. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Unique lattice design allows for high torque loads

35 couplings from SDP feature unique lattice design which allows for very large axial, radial, and angular misalignments while transmitting high torque loads with zero backlash. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Flexible Couplings From SDP Offers Zero Backlash

These couplings are designed for use in a variety of applications including: encoders, measuring equipment, positioning systems, robotics, servo systems, tachometers, and test equipment. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Mechanical Slip-Ease® Clutches from SDP

These clutches are commonly used for overload protection to prevent injury and machine failure, but have a wide variety of other applications such as tension control and positioning retention hinges like the ones in reclining chairs. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Miniature right angle gear drives from SDP

These drives are available with single or double output shafts, ratios of 1:1 or 2:1 and a maximum of 1800 rpms. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Phosphor Bronze Worm gears from SDP

All metal construction for use in a wide variety of instrumentation applications. The worm gears are made of phosphor bronze and the worms of hardened steel. (read more)

Stock Drive Products & Sterling Instrument - SDP/SI - Differentials from SI feature anti-backlash gears

Our patented anti-backlash differentials are particularly effective at adding and subtracting shaft rotations in servo systems. (read more)